TY  - BOOK
AU  - Pratt,Charles
TI  - Slide copying
AV  - EAF PAM TR470.P72 
PY  - 1968///
CY  - Dar es Salaam
PB  -  : Institute of Education, University College
KW  - Slides (photography)
KW  - Copying
KW  - Study and teaching
KW  - Photographic slides
ER  -